Current Address and Permanent Address same using Checkbox to Fill data automatically in Lightning Component

public class AddressFieldsInsert {
    @AuraEnabled
    public static void accountinsert(Account acc){
        insert acc;
    }
}

<aura:component controller="AddressFieldsInsert" implements="lightning:isUrlAddressable,force:appHostable,flexipage:availableForAllPageTypes,flexipage:availableForRecordHome,force:hasRecordId,forceCommunity:availableForAllPageTypes,force:lightningQuickAction" access="global" >
    
    <aura:attribute name="NewAccount" type="Account[]" default="{'sobjectType' : 'Account'}"/>
    <aura:attribute name="CheckboxValue" type="Boolean" default="false"/>
    
    <div class="slds-align--absolute-center">
        <lightning:input label="Account Name" name="Name" value="{!v.NewAccount.Name}"/>
    </div>
    
    <lightning:layout horizontalAlign="space">
        <lightning:layoutItem >
            <div>
                <h3 class="slds-section__title slds-theme_shade slds-size--8-of-12">
                    <span class="slds-truncate slds-p-horizontal_small" title="Section Title">Billing Address</span>
                </h3>
                <br/>
                <div class="slds-size--8-of-12">
                    <lightning:input label="Billing Street " name="BillingStreet" value="{!v.NewAccount.BillingStreet}"/>
                    <br/>
                    <lightning:input label="Billing City" name="BillingCity" value="{!v.NewAccount.BillingCity}"/>
                    <br/>
                    <lightning:input label="Billing State" name="BillingState" value="{!v.NewAccount.BillingState}"/>
                    <br/>
                    <lightning:input label="Billing Country" name="BillingCountry" value="{!v.NewAccount.BillingCountry}"/>
                    <br/>
                    <lightning:input label="Billing PostalCode" name="BillingPostalCode" value="{!v.NewAccount.BillingPostalCode}"/>
                    <br/>
                    <lightning:input type="checkbox" aura:id="checkBoxId" label="Is Shipping address same as Billing address" name="checkbox" onchange="{!c.onClickCheckBox}"/>
                    <br/>
                </div>
            </div>
        </lightning:layoutItem>
        
        <lightning:layoutItem >
            <div>
                <h3 class="slds-section__title slds-theme_shade slds-size--12-of-12">
                    <span class="slds-truncate slds-p-horizontal_small" title="Section Title">Shipping Address</span>
                </h3>
                <br/>
                <div class="slds-size--12-of-12">
                    <lightning:input label="Shipping Street " name="ShippingStreet" value="{!v.NewAccount.ShippingStreet}"/>
                    <br/>
                    <lightning:input label="Shipping City" name="ShippingCity" value="{!v.NewAccount.ShippingCity}"/>
                    <br/>
                    <lightning:input label="Shipping State" name="ShippingState" value="{!v.NewAccount.ShippingState}"/>
                    <br/>
                    <lightning:input label="Shipping Country" name="ShippingCountry" value="{!v.NewAccount.ShippingCountry}"/>
                    <br/>
                    <lightning:input label="Shipping PostalCode" name="ShippingPostalCode" value="{!v.NewAccount.ShippingPostalCode}"/>
                </div>
            </div>
        </lightning:layoutItem>
    </lightning:layout>
    
    <div class="slds-align--absolute-center">
        <lightning:button label="Save" name="Save" variant="brand" onclick="{!c.SubmitFunction}"/>
    </div>
    
</aura:component>

({
    onClickCheckBox : function(component, event, helper) {
        var checkBoxV = component.find("checkBoxId").get("v.checked");
        component.set("v.CheckboxValue", checkBoxV);
        var cb = component.get("v.CheckboxValue");
        
        var streetStr=component.get("v.NewAccount.BillingStreet");
        var cityStr=component.get("v.NewAccount.BillingCity");
        var stateStr=component.get("v.NewAccount.BillingState");
        var countryStr=component.get("v.NewAccount.BillingCountry");
        var postalcodeStr=component.get("v.NewAccount.BillingPostalCode");
        
        if(cb==true) {
            component.set("v.NewAccount.ShippingStreet",streetStr);
            component.set("v.NewAccount.ShippingCity",cityStr);
            component.set("v.NewAccount.ShippingState",stateStr);
            component.set("v.NewAccount.ShippingCountry",countryStr);
            component.set("v.NewAccount.ShippingPostalCode",postalcodeStr);
        }
        else{
            component.set("v.NewAccount.ShippingStreet","");
            component.set("v.NewAccount.ShippingCity","");
            component.set("v.NewAccount.ShippingState","");
            component.set("v.NewAccount.ShippingCountry","");
            component.set("v.NewAccount.ShippingPostalCode","");
        }
    },
    SubmitFunction : function(component, event, helper) {
        var newacc = component.get('v.NewAccount');
        var action=component.get('c.accountinsert');
        action.setParams({'acc':newacc});
        action.setCallback(this,function(response){
            component.set('v.NewAccount',response.getReturnValue()); 
        });
        $A.enqueueAction(action);
    }
})

.THIS label.slds-form-element__label{
    font-size: 15px;
    color: #1589ee;
}
.THIS .slds-section__title{
    background-color: #1589ee;
    color: white
}
.THIS.slds-align--absolute-center{
    margin-top:40px;
    width:150px;
}

<aura:application extends="force:slds">
    <c:AutoFillAddress/>
</aura:application>